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75103 = 710729
BaseRepresentation
bin10010010101011111
310211000121
4102111133
54400403
61335411
7431650
oct222537
9124017
1075103
1151476
1237567
1328252
141d527
15173bd
hex1255f

75103 has 4 divisors (see below), whose sum is σ = 85840. Its totient is φ = 64368.

The previous prime is 75083. The next prime is 75109. The reversal of 75103 is 30157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30157 = 53569.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75103 is a prime.

It is a Duffinian number.

75103 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5358 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (21460).

275103 is an apocalyptic number.

75103 is a deficient number, since it is larger than the sum of its proper divisors (10737).

75103 is a wasteful number, since it uses less digits than its factorization.

75103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10736.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 75103 is about 274.0492656440. The cubic root of 75103 is about 42.1909296709.

It can be divided in two parts, 7 and 5103, that multiplied together give a square (35721 = 1892).

The spelling of 75103 in words is "seventy-five thousand, one hundred three".

Divisors: 1 7 10729 75103